Load resistance, dissipated power, transformers. (AC)

1. The problem statement, all variables and given/known data
I have got this scheme:
Alternating voltage V = 120 V,
Total resistance of wires Rw = 0.6 Ω
Current is 100 A, ratio 1:5 and 5:1 (as we can see it in the scheme)

Have to calculate dissipated power in the load (Pl), dissipated power in the wires (Pw), total dissipated power (Pt) and voltage in load (Vl).

3. The attempt at a solution
I'm trying to use this equation Pt= V*I = Pw + Pl= 0.6 * Iw2 + (5*I)2 * Rl
But i have got lack of understanding, how exactly is current true the wires Iw, total current It and I guess current in the load is Il = 100A?